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| | 2-NAPHTHYLAMINE-8-SULFONIC ACID Basic information |
| | 2-NAPHTHYLAMINE-8-SULFONIC ACID Chemical Properties |
| Boiling point | 220°C (rough estimate) | | density | 1.3588 (rough estimate) | | refractive index | 1.6500 (estimate) | | pka | -0.34±0.40(Predicted) | | Water Solubility | 0.6g/L(20 ºC) |
| RIDADR | 1759 | | HazardClass | 8 | | PackingGroup | III |
| | 2-NAPHTHYLAMINE-8-SULFONIC ACID Usage And Synthesis |
| Description | 2-Aminonaphthalene-8-sulfonic acid [86- 60-2]. (7-aminonaphthalene-1-sulfonic acid), Badische acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles or prisms although only 0.5 % soluble at 100 ℃. Alkalimetal salts are quite soluble in water. Caustic fusion yields 7-amino-1-naphthol, sulfonation in the cold with 20 % oleum gives 2-aminonaphthalene-6,8-disulfonic acid, but nitration gives a mixture of products. 2-Aminonaphthalene-8-sulfonic acid reacts with diazo compounds to form diazoamino compounds rather than coupling to give azo derivatives. | | Chemical Properties | Colorless needles, partially soluble in water and alkalies, slightly soluble in alcohol. | | Uses | Azo dye intermediate. | | Production Methods | 2-Hydroxynaphthalene-8-sulfonic acid is aminated by a Bucherer reaction under conditions similar to those used for Tobias acid. |
| | 2-NAPHTHYLAMINE-8-SULFONIC ACID Preparation Products And Raw materials |
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